The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1976
Filed:
May. 23, 1974
Applicant:
Inventor:
Harold Lloyd Weaver, Port Allegany, PA (US);
Assignee:
Pittsburgh Corning Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F / ;
U.S. Cl.
CPC ...
162152 ; 1621 / ;
Abstract
A mineral wool insulation product containing a major portion of mineral wool fibers, a conventional binder, and predetermined quantities of an admixture of selected colloidal mineral clays to provide an insulation product having extremely low quantities of free silica and excellent physical properties. The colloidal clay admixture comprises selected quantities of kaolinite clays and bentonite clays.